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tutorials:faq:main [2018/01/12 16:31]
miconda [Configuration File Processing]
tutorials:faq:main [2019/08/02 17:10]
henningw [General]
Line 47: Line 47:
 ??? Is it possible to reload Kamailio configuration file? ??? Is it possible to reload Kamailio configuration file?
  
-!!! No, you must restart after you update the configuration file.+!!! If you use native scripting language, you must restart after you update the configuration file.
  
 But note that many global parameters can be changed via RPC/MI commands without restart (e.g., TCP connecting timeout, debug level). Applying changes related to loaded modules or routing block require always a restart. But note that many global parameters can be changed via RPC/MI commands without restart (e.g., TCP connecting timeout, debug level). Applying changes related to loaded modules or routing block require always a restart.
 +
 +If you use a KEMI scripting language (Lua, Python, JavaScript, Squirrel), then you can reload the routing logic script without restarting Kamailio by issuing an RPC command (see KEMI interpreter modules documentation for more details: app_lua, app_python, app_python3, app_jsdt, app_sqlang).
  
 ??? What is the license of Kamailio? ??? What is the license of Kamailio?
  
-!!! Kamailio is an open source application licensed under GNU Public License version 2 (aka GPLv2). It can be used for free "as in beer".+!!! Kamailio is an open source application licensed under GNU Public License version 2 (aka GPLv2). It can be used for free "as in beer" on your infrastructure. Keep in mind that you need also distribute the source code of your changes, if you distribute it as a binary to your customer. For more information have a look to the [[https://www.gnu.org/licenses/old-licenses/gpl-2.0-faq.html.en|GPLv2 FAQ]].
  
 Starting with end of 2008, contributions to core and several modules are done under BSD license. That means parts of it can be extracted and used under BSD license terms. But over all, when used as one application, the use must follow the terms of GPLv2, because GPLv2 is viral.  Starting with end of 2008, contributions to core and several modules are done under BSD license. That means parts of it can be extracted and used under BSD license terms. But over all, when used as one application, the use must follow the terms of GPLv2, because GPLv2 is viral. 
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   * without applying changes   * without applying changes
  
-<code>+<code c>
 append_hf("X-Hdr: xyz\r\n"); append_hf("X-Hdr: xyz\r\n");
  
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   * with applying changes   * with applying changes
  
-<code>+<code c>
 append_hf("X-Hdr: xyz\r\n"); append_hf("X-Hdr: xyz\r\n");
  
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   * add X-Peer-ID header when sending somewhere else   * add X-Peer-ID header when sending somewhere else
  
-<code>+<code c>
 request_route { request_route {
   ...   ...
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 } }
 </code> </code>
 +
 +Very important is also to be aware that doing same operation many times in request_route is not overwriting the previous value, but combines them. For example, if you do two times uac_replace_from(), the From header can become corrupt. Like:
 +
 +<code c>
 +request_route {
 +  ...
 +  uac_replace_from("sip:test1@kamailio.org");
 +  uac_replace_from("sip:test2@kamailio.org");
 +  ...
 +}
 +</code>
 +
 +Results in From header having the URI: **sip:test1@kamailio.orgsip:test2@kamailio.org**. Again, use branch_route to do the operations if you need different From header for outgoing branches.
 +
  
 ??? How to remove a single header field when a header appears multiple times? ??? How to remove a single header field when a header appears multiple times?
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 However, if return code is 0, the next action after function() is not executed. It can be used only of positive or negative response code. However, if return code is 0, the next action after function() is not executed. It can be used only of positive or negative response code.
  
-??? How is the SIP retransmission filtered?+??? How is the SIP request retransmission handled?
  
 !!! The next snippet is detecting retransmissions: !!! The next snippet is detecting retransmissions:
tutorials/faq/main.txt ยท Last modified: 2021/08/27 08:11 by miconda